Diplotrypa sp. & Monotrypa sp.

Name: Diplotrypa sp. & Monotrypa sp.    Locality: Røykenvik, Buskerud, Norway   Age: Ordovician   Showcase: Historical geology; Ordovician   Diplotrypa and Monotrypa appeared as hemisphaerical colonies.   Other bryozoans in the exhibition

[Norsk tekst]